What ports are used?? (7 posts)

Jesse Smith Member

There's 20 and 21, but it's also using ports up in the teen thousands and 20 thousands. I'm trying to block all ports that I don't use, and it likes to just pick random ports up there. Is there any way to make it only use ports under 1,000, like a non-standard port number?

Jim Matthews Administrator

Hi Jesse,

If you are using FTP passive mode, which is the default, Fetch will make outbound connections to port 21 and to the data ports chosen by the FTP server. Those are usually in the range 49152 through 65535. There isn't any way to tell an FTP server what ports to use.

I don't think you gain much security by blocking outbound ports, so this is not something I would worry much about.

Jim Matthews Administrator

souix Member

I don’t have any of my computers networked together. I’m trying to use the Mac Mini as a server for external uploads for clients. It’s given me several different error messages since I’ve written. The most recent was “server timed out”. I’ve read up further and was trying to make adjustments as they came up with no success. I’m perplexed I’ve been using Fetch for uploads for ions but not as the server. I understand “how it works” but have been unsuccessful with the set up. I know ports 21 & 22 are primary but neither are working yet. I’ve also received errors “password unknown” but have corrected that. Timing out is the most recent as I’ve stated. My internet up & down is 150 + for speed so I know the speeds are okay. I have an IT guy coming today to have a look and hopefully it will be corrected however I can’t confirm it will work and will ask you for suggestions still.

Jim Matthews Administrator

Hi,

Fetch can only be a client, not a server; in this case Rumpus is the server. Configuring an FTP server on a home network for access from the Internet is rather tricky, and the Rumpus people or your ISP may be able to help you. If you have a choice I would recommend using SFTP rather than FTP; SFTP only requires one port, while FTP uses many.